There's no particularly strong connection between computer crimes and drug crimes. As you point out, the comparison is hyperbole, and ignores the deep racial, cultural, and class conflicts at the heart of the drug war. None of those things are really applicable to computer crimes.
Rather, the time Keys is facing is simply a symptom of the broader malaise of the justice system: felony enhancements are too quick to trigger, sentences are too long and the sentencing guidelines offer false precision while reducing necessary judicial discretion.
The article's comparison to California's vandalism law highlights the issue described above: "Under California law, physical vandalism – like spray painting graffiti on a building — can be punished as either a misdemeanor or a felony..." That part is true of the CFAA as well, which is also a misdemeanor unless committed in furtherance of another crime. And the trigger for felony vandalism in California isn't high--above $400 in property damage makes a felony charge available to the prosecutor, as well as a sentence of up to three years in prison. In other words, I don't think it's fair to say that Keys faces more time for his computer crime than if he had physically vandalized a building to the tune of five figures of damage.
Drug crimes are just in a whole different league. Possession with intent to distribute less than 100 grams of heroin can carry a sentence of up to 20 years, or up to 30 years on a second offense. Meanwhile, prison time for computer crimes is still relatively light, unless they are effectively some sort of fraud or theft: http://en.wikipedia.org/wiki/List_of_computer_criminals. Something like this is much more typical: http://www.washingtonpost.com/local/crime/aspiring-medical-s... (three months prison + 7 months of halfway house out of 10 months sought by the prosecution for hacking into AAMC computers with intent to cheat on the MCAT exam).